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Cervical Cancer

  • Updated: 03/29/2012

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The Cervix

The cervix is part of a woman's reproductive system. It's in the pelvis. The cervix is the lower, narrow part of the uterus (womb).

The cervix is a passageway:

  • The cervix connects the uterus to the vagina. During a menstrual period, blood flows from the uterus through the cervix into the vagina. The vagina leads to the outside of the body.
  • The cervix makes mucus. During sex, mucus helps sperm move from the vagina through the cervix into the uterus.
  • During pregnancy, the cervix is tightly closed to help keep the baby inside the uterus. During childbirth, the cervix opens to allow the baby to pass through the vagina.
©2009 Terese Winslow
U.S. Government has certain rights

This picture shows the cervix and nearby organs.

This text may be reproduced or reused freely. Please credit the National Cancer Institute as the source. Any graphics may be owned by the artist or publisher who created them, and permission may be needed for their reuse.